Adjustable oarlock



April 24, 1951 M. T. MICHAEL ADJUSTABLE OARLOCK Filed Nov. 10, 1948 A rim-nay Patented Apr. 24, 1951 UNITED] STATES PATENT OFFICE ADJUSTABLE OARLOCK Marshall T. Michael, Perry, Kane.

Application November 10, 1948', Serial No. 59,239

1 Claim. 1

This invention relates to a novel adjustable oarlock or rowlock of the type which is adapted to be secured detachably and adjustably to the loom of an oar by an adjustable clamping engagement therewith so that the oarlock is detachably but securely fixed to the oar.

Another object of the invention is to provide an oarlock in which the oar can readily pivot in a vertical plane without subjecting the loom of the oar to wear.

A further and primary object of the present invention is to provide an oarlock for accomplishing the aforedescribed results of extremely simple construction which is capable of being economically manufactured and sold and which will be very durable and efficient for its intended purpose.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawing, illustrating a preferred embodiment thereof, and wherein:

Figure 1 is an elevational view of the oarlock shown in an applied position and looking at the oarlock as it would appear looking from either The oarlock support 6 includes a stem or shank 9 which depends from its integral disk-like head I and which is disposed substantially perpendicular to said head. The oarlock support 6 also includes an ear I I which is formed integral with and rises from the opposite, upper side of the head I0 and which is provided with an opening I2.

' posed openings I4. .The outturned terminals I3 form a gap in the substantially ring-shaped portion I5 of the clamp I. Said portion I5 is adapted to be positioned around a portion of the loom I8 of a conventional oar after which the ear II is inserted between the terminal portions l3. The fastening 8 which includes a bolt I6 and nut I! is then applied by inserting the threaded shank end of the bolt I6 through the aligned openings I4 and I2 of the terminals I3 and ear I I. The nut I! is then applied to the threaded shank end of the bolt and tightened against the outer side of one of the terminals I3 and so that the head of the bolt I6 will engage against the outer side of the other terminal I3. By tightening the nut H, the ring portion I5 of the clamp I will be drawn into clamping engagement with the oar loom I8. With the clamp I of a proper size for a particular oar loom, when the loom is securely clamped in the ring portion I5, the terminals I3. will be disposed substantially parallel to one another and with the ear II loosely disposed therebetween. Said ear II has its opening- I2 engaging anunthreaded portion of the shank of the bolt I6, as seen in Figure 3, which portion is free to rotate in the'opening I2 to permit the clamp 'I to rock on the support 6 so that the oar loom I8 can swing in substantially a vertical plane. It will be readily apparent that the position of the oarlock 5 on the oar loom I8 can be varied as desired by merely loosening the fastening 8 and slidably adjusting the clamp I on the oar loom after which the fastening 8 can again be tightened as previously described.

From the foregoing it will be readily apparent that an oarlock of extremely simple construction has been provided including a minimum of parts and wherein the fastening 8 functions not only as a pivot between the support and clamp but also as an actuator for moving the clamp into an operative position.

Various modifications and changes are contemplated and may obviously be resorted to, without departing from the spirit or scop of the invention as hereinafter defined by the appended claim.

I claim as my invention:

An adjustable oarlock comprisin a support having an upstanding ear, a clamp adapted to detachably and adjustably engage an oar loom,

and means rotatably engaging said ear and pivot;

ally connecting the clamp and support and providing an adjustable clamp actuator, said clamp comprising an uninterrupted relatively wide split band of relatively resilient material having a substantially ring-shaped intermediate portion adapted to engage around the oar loom and outturned apertured terminal portions loosely straddling said ear and receiving said pivotal means, said pivotal means comprising a nut and bolt, and said ear having an aperture registering with the apertures of said outturned terminal and receiving the bolt shank, said bolt shank having an unthreaded portion journalled in the aperture of the ear.

MARSHALL '1. MICHAEL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 508,696 Norman Nov. 21, 1893 551,265 De Riar Dec. 10, 1895 981,356 Aydelott Jan. 10, 1911 2,349,692 Anderson May 23, 1944 2,505,708 Gagnon Apr. 25, 1950 

